Table 2.
ERG results for summer and winter in subjects with cataracts and in pseudophakes.
| Winter | Summer | Winter | Summer | |
|---|---|---|---|---|
| Cataracts | Pseudophakes | |||
| Scotopic −25 dB b-wave amplitude (μV)a | 179.3 (51.9) | 183.61 (48.7) | 205.5 (53.0) | 217.2 (49.6) |
| Implicit time (ms)a | 104.1 (10.3) | 107.3 (6.4) | 97.6 (9.8) | 97.6 (8.3) |
| Scotopic 0 dB a-wave amplitude (μV)a | 118.1 (36.6) | 120.2 (26.5) | 132.1 (42.0) | 139.8 (44.6) |
| Implicit time (ms)a | 20.9 (2.8) | 21.2 (2.6) | 18.2 (1.7) | 18.9 (2.0) |
| Scotopic 0 dB b-wave amplitude (μV) | 298.0 (88.1) | 316.5 (77.3) | 308.6 (77.9) | 324.4 (95.4) |
| Implicit time (ms)a | 52.4 (2.9) | 52.5 (2.5) | 50.6 (2.3) | 50.6 (2.6) |
| Photopic 0 dB a-wave amplitude (μV) | 24.6 (6.0) | 22.6 (7.2) | 24.9 (6.9) | 25.6 (8.3) |
| Implicit time (ms) | 15.8 (0.8) | 16.0 (0.7) | 15.6 (0.8) | 15.6 (0.7) |
| Photopic 0 dB b-wave amplitude (μV) | 83.8 (22.6) | 83.5 (21.9) | 89.1 (23.6) | 84.6 (25.7) |
| Implicit time (ms) | 32.1 (1.2) | 32.2 (1.2) | 32.0 (1.7) | 31.4 (1.1) |
| Flicker 30 Hz amplitude (μV) | 73.9 (19.6) | 71.5 (21.7) | 76.4 (21.5) | 73.8 (23.6) |
| Implicit time (ms) | 27.3 (3.0) | 27.7 (1.6) | 27.4 (1.6) | 26.8 (1.2) |
Mean right and left eyes (± SD in brackets); amplitudes are indicated in microvolts and implicit times in milliseconds; n = 48.
ap < 0.05; significant differences between cataracts and pseudophakes (in bold).